Margin adjustment guide



March 8, 1938. A. A. KOCH MARGIN ADJUSTMEN T GUIDE Filed Nov. 6, 1956 ATTORNEY,

Patented Mar. 8, 1938 UNITED STATES "NT DTF F l CE 6 Claims.

- My sinvention relates-to margin adjustment guidesand especially to straight edge adjustment guides for trimmingwallpaper margins.

..An:object of my invention is to provide adjustable guides for-:a straight edgemember used in trimming the margin of a sheet of material.

rAnother object :isto provide a guideadapted to :hold-a straight aedge member in a predetermined position.

-Another object is to provide a guide adapted to hold a straight'edge membervin one position for trimming one margin ofa sheet of wallpaper and (to hold it-in another position for trimming another margin of the sheet-ofwallpaper.

Another-object is to provide adjustable means for holding a straight edge member at one predetermined distance from a longitudinal guide member running along a table surface and adjustable means for holding the straight edge member at anotherpredetermined distance from the longitudinal member, each of the adjustable means'being adapted to engage the longitudinal member without being re-adjusted.

-Another object is to provide a longitudinal member extending along a table surface and adapted to permit a plurality; of finger-members to successively engage-the longitudinal member and to permit another finger-member -to escape engagement with the longitudinal member so that a straight edge m'ember will be held at onedistance from the longitudinal member when one of the finger members is in engagement and to hold the straight edge member at another distance from the longitudinal member when another fingermember is in engagement with thelongitudinal member.

Another .object is to provide a block member adapted to be carried by a straight edge. member, atheblock-mernber having a plurality of fingers .adjustably clamped thereto for holding the straight edge member atvariable positions upon a table surface.

Another object is to provide a device for. holding a straight edge member ,parallelto the side of a table surface.

Another object is to provide a devicefor use intrimming themargin of astrip of wallpaper along a true line and parallel to the opposite margin: ofthe strip of wallpaper.

Another object is to-provide a device for trimming the-marginsofunequal width of a strip of wallpaper so that themarginsof the remaining .strip of wallpaper areparallel.

' A still-further object isto provide a block mem ber adapted to be carried by a straight edge member and. a fingenmember adjustably mounted. on the block memberior holding the straight edge member at variable positions upon a table surface, :the finger member having graduations thereon for adjustably determining its length and p the relativeposition of the straight edge member.

Other objects and a'fuller understanding may behad by'referring to the accompanying description and claims, taken in conjunction with the accompanying drawing, in which: Figure 1 is a plan view of a table or bench used in pasting and' trimmingwallpaper with my device in use while trimming one margin of the wall paper;

Figure 21s a view similar to Figure 1 but in which another margin. and of difierent width is being trimmed-from the strip of wallpaper;

Figure 3 is a cross-sectional-view taken through the line 3--3 of Figure2yand 20 Figure 4 is a perspective view of one of-my devices mounted on astraight edge member and carried'on a table surface.

In Figures 1- and 2, Ishow a plan View looking down upon the top of a table or bench used for 25 supporting a strip of wallpaper during its preparation forhanging upon a wall. The table surfacev II is theusual top of the benches used in this work. As the table surface ll is usually made 'of wood, I provide a long'flat steel plate l2 upon which the cutting operation takes place, so thatthe blade of the cutter engagesthe steel plate I2.

A straight edge member is the usual straight edge member used in trimming margins and for similar work. 'The straight edge member 13 has l a longitudinal groove l4 extending along its lengthupon itsupper surface and in thisgroove M, the roller cutter -29-is slidably engaged and carried by 'the straight edge member l3. The 40 roller cutter 29 is of the usual. type used in trimming strips of material andis suchth'atwhen the handle 30 is pressed downwardly and the cutter 29 moved along the straight edge member 13, the wallpaper or other material along the edge of the straight edge member i3 is severed by the blade of the roller cutter 29.

. Upon a longitudinal edge of the table surface H, I have mounted the longitudinal member l5 whichissecured to the table surface by screws or other suitable means for holding it securely to the table. The table surface 'II has a slight counter-sink along its longitudinal edge to accommodate the longitudinal member I5 so that the upper surface ofthe longitudinalmember I5 is flush with the top of the table surface I l as is better illustrated in Figure 3. The longitudinal member I5 has an upwardly projecting portion I6 extending along its length so as to form an upwardly projecting portion along one longitudinal edge of the table surface I I. As the upwardly projecting portion I6 of the longitudinal member I5 is perfectly straight, any member held parallel to it will also be straight upon the table surface ll. Approximate to each end of the longitudinal member I5, I have provided an open space or cut-away portion I! in the upwardly projecting portion l6 of the longitudinal member I I5 the block member l8. In one of the openings I9,

the finger member 24 having a downwardly projecting portion 25 is inserted and slidably engaged therein. In the other opening IQ of each block member IS the longer finger member 25 3 member I8.

having the downwardly projecting portion 21 is inserted and slidably engaged in the block member I8. The shorter finger member 24 and the longer finger member 26 may be slid in the opening l9 of the block member M3 to various positions so that different lengths of the finger members project from the block member I8. After the finger members have been'slid to the desired position so that-the pre-determined length of the finger members is'extended from the block member I8,-it is necessary to clamp or otherwise securely engage the finger members to the block member l8. The'block member l8 has projecting portions 2i situated over each finger member, which projecting portion has internal threads therein. A thumb screw bolt 22 is threadably engaged in each projecting portion 2| in such a way that by turning of the handle 23 of each thumb screw bolt '22, the end of the thumb screw bolt will clamp the finger member below it when the screw bolt is turned inwardly and will unclamp the finger member below it when the screw bolt is turned outwardly. Therefore, each finger member may be slid or moved relative to each block member upon which it is carried so as to extend apre-determined distance outwardly from the block member and may be clamped securely in that position. As each finger member is separately clamped, each may be set at a diiferent length from the block member l8 and from the straight edge member [3 upon which the block member I8 is mounted. The projecting portions 25 and 2'! of the finger members 24 and 26 respectively extend down sufiiciently to engage the upwardly projecting portion of the longitudinal member l5. It is seen that when the projecting portion 25 is pushed up into engagement with the longitudinal member that the straight edge member 13' will be held at one distance from the longitudinal member l5 and that when the projecting portion 21 is pushed up into engagement with. the longitudinal member that the straight edge member l3 will be held at another distance from the longitudinal member, the said distances depending upon the relative lengths of the finger members 24 and 26 extending out from the block As the longer of the finger members would otherwise prevent the shorter of the finger members from engaging the longitudinal member, the open spaces I! have been provided which permit the projecting portion 21 to be moved to a position so that the projecting portion 25 may engage the longitudinal member. When it is desired to have the shorter finger member 24 determine the distance between the straight edge member and the longitudinal member, the straight edge member I3 is shifted longitudinally until the projecting portion 21 is opposite the respective open space H and is then moved laterally so that each projecting portion 21 is moved through the respective open space I! to a position where the projecting portion 25 engages the longitudinal member. When it is desired to have the longer finger member 26 determine the distance between the longitudinal member and the straight edge member, then the projecting portion 21 is moved back through the respective open space II by laterally moving the straight edge member until the projecting portion 21 is over the table surface I l. By moving the straight edge member slightly longitudinally of the table II and then towards the longitudinal member, the projectingportion 21 will then engage the inner side of the longitudinal member, and thus the length of the longer finger member 2 6 will determine the distance between the longitudinal member and the straight edgemember. Therefore, by means of the block member, the two finger members, and the longitudinal member having the open space therein, the straight edge member may be held or guided in a plurality of distances from the longitudinal member without re-setting the lengths of the finger'members.

Wallpaper as it comes in the'roll usually has two blank or Waste margins 33 and 34 extending along the longitudinal edges of the strip of wall paper 3|. These margins are often of different widths and therefore, in trimming off this margin, the straight edge member l3 upon which the cutter 29 is carried must be held in difierent positions relative to the strip of wallpaper 3 I. For a wide margin, as margin 34, the'straight edge member [3 must be held farther back from the edge of the strip of wallpaper than when the narrow margin 33 is being trimmed. In practice, the strip of wallpaper 3| is spread out along the table II with its blank surface upwardly and the paste applied to the blank side. The ends of the strip of wall paper 3| are then brought up together to 'meet at the point or junction'32 so as to form a folded strip of material or paper with the paste enclosed and the printed part of the paper on the'outside. As the paper has been folded double, any inaccuracy or error in cutting the margin off perfectly straight and longitudinally of the strip of paper will be magnified. It is essential that the margins be trimmed off perfectly true so that when the paper is hung upon the walls the adjoining edges of the'strips of wallpaper will be perfectly square and parallel throughout their length. Therefore, great care must be exercised in aligning the straight edge member along the strip of wallpaper so that the cutter will trim off a margin of equal width throughout its length. It is also desirable that such proper trimming of the margin be done with a minimum of effort and time so that the various strips of wallpaper may be trimmed and hung in rapid succession without a large number of adjustments, measuring, and shifting of the straight edge member.

All of the rolls of wallpaper of the selected type will have all the margins on one edge of one width and all the margins on the other edge of another width so that margin 33 and margin 34 will be uniformly the same on all the strips of wallpaper on a certain job to be done as having been uniformly printed with margin 33 and margin 34.

Figure 1- illi'is'trait-is of the wider margin 3 l of -a p f allpaper after having pasted anddolded -with its'='edgesmeetingat 32. 'The -long er finger members 26 have been set at the same lei-i'gtlr and -extend fre'm' the bloek members I 8 at the proper distance. The longer finger'members 216 are moved away slightly-from the open spaces 1 'T-so-that the-longer finger members 26- willengage the side of the longitudinal member, thus-holding the straight 'edge'member 43 parallel to the longitudinalmember 15. The stripof wallpaper 31 has its edge abutting the longitudinal member so that the straight edge member is also parallelwith the edge of the strip of wallpaper' 3|. The length of the l'ongerfinger members 26 is such thatthe straight edge member 13 is held at the proper-distance'from the "edge of the strip of'wallpaper and so that the roller -cutten29 cuts off -or the'margin34 at its proper width whichisa uniform throughout the length-of the -marg-in.-

To trim off the narrower margin 33, the strip of wallpaper is swung around on the table surface I i so that the other longitudinal edge of the strip of wallpaper abuts the longitudinal member as shown in Figure 2. For determining the position of the straight edge member H1 in this operation, the shorter finger members 24 are utilized. In order to bring them into engagement with the longitudinal member without having to unclamp the longer finger members 26, the straight edge member I3 is shifted so that the projecting portion 2! of each longer finger member 26 is moved through the open spaces l1, thus permitting the shorter finger members 24 to engage the longitudinal member. The length of the shorter finger members 24 are similarly set so that the straight edge member i3 is held in proper position upon the wallpaper 3| so that the margin 33 will be trimmed off at the proper width and at a uniform width throughout its length.

Each strip of wallpaper having the same margins 33 and 34 may thus be trimmed without resetting my guide device so that the trimming may be done rapidly, accurately, and with a minimum of adjustments and effort.

Although I have described my invention with a certain degree of particularity, it is understood that the present disclosure has been made only by way of example and that numerous changes in the details of construction and the combination and arrangement of parts may be resorted to without departing from the spirit and the scope of the invention as hereinafter claimed.

I claim as my invention:

1. A device for adjustably guiding the position of a. straight edge member used in cutting the border portions from a strip of material upon a table surface, comprising, in combination, a straight edge member, a longitudinal member adapted to be mounted to said table and to extend upwardly therefrom so as to form a guide extending along said table surface, said longitudinal member having a pair of open spaces near the ends of the longitudinal member, a pair of block members adapted to be mounted on said straight edge member near the ends of the straight edge member, a pair of finger members slidably carried by each said block member, each said finger member having projecting portions being adapted to engage said longitudinal member, one finger member of each said pair of finger members being adapted to hold the straight edge member at one pre-determined distance from the longitudinal member and the other finger member "of each said pairof finger -members being adapted to hold the straight edge'member'at another pre-determined distance from the longitudinal member, one finger member of each pair of finger members being adapted to be moved through said open spaces of the longitudinal memberso-that the other fingermember of each 'said pair-of finger-membersmay engage the said longitudinal membenand means for adjustably securing-said finger members to said block members so that the distances between the straight edge member and the longitudinal member may be variablydetermined, the'arrangement of the straight edge member, the longitudinal member, and the finger members being such that the border: portions: or different 'widths' 'may be cut from s'aid 'strip of material by the engagement of different fin'ger members of each pair: of finger *membe'rsf-against' the-longitudinal' member.

iii device for-adjustably guiding the position of a 'straight edge member upon a strip of :material on a table surface, comprising, in combination, a straight edge member, a longitudinal member adapted to be mounted to said table and to extend upwardly therefrom so as to form a guide extending along said table surface, said longitudinal member having a pair of open spaces near the ends thereof, a pair of block members adapted to be mounted on said straight edge member, a pair of finger members slidably carried by each said block member, each said finger member being adapted to engage said longitudinal member, one finger member of each said pair of finger members being adapted to hold the straight edge member at one predetermined dis tance from the longitudinal member and the other finger member of each said pair of finger members being adapted to hold the straight edge member at another pre-determined distance from the longitudinal member, one finger member of each pair of finger members being adapted to be moved through said open spaces of the longitudinal member so that the other finger member of each said pair of finger members may engage the said longitudinal member, and means for adjustably securing said finger members to said block members so that the distances between the straight edge member and the longitudinal member may be variably determined.

3. A device for adjustably guiding the position of a straight edge member upon a strip of material on a table surface, comprising, in combination, a straight edge member, a longitudinal member adapted to extend upwardly from said table surface and to form a guide extending along said table surface, said longitudinal member having cut-away portions approximate to its ends, a pair of clamping members adapted tobe carried by the said straight edge member, a pair of finger members carried by each said clamping member, each said finger member being adapted to engage said longitudinal member, one finger member of each said pair of finger members being adapted to hold the straight edge member at one predetermined distance from the longitudinal member and the other finger member of each said pair of finger members being adapted to hold the straight edge member to another predetermined distance from the longitudinal member, one finger member of each pair of finger members being adapted to be moved through the said cut-away portions of the longitudinal member so that the other finger member of each said pair of finger members may engage the said longitudinal member, and means for clamping said finger members to the clamping members at variable distances from the longitudinal member.

4. The combination of a straight edge member, a block member adapted to becarried by said straight edge member upon a table surface, said table having a guide mounted thereto and extending upwardly from the table surface, a finger member slidably carried by said block member and adapted to. engage against said upwardly extending guide on said table surface, and means for clamping said finger member to said block member at a variably determined distance from the said upwardly extending guide so that the said straight edge member is held at variable positions on said table surface.

5. A device for adjustably guiding the position of a straight edge member upon a strip of material on a table, comprising, in combination, a straight edge member, spacing means carried by said straight edge member, guide means carried by, and mounted to, said-table and adapted to mined distances relative to the said guide means.

6. A device for adjustably guiding the position of a straight edge member upon a. table, said table having an edge portion extending along a side thereof, comprising, in combination, a straight edge member adapted to be carried on said table, spacer means carried by, and extending from, said straight edge member, said spacer means being adapted to engage said edge portion of the table and to space the said straight edge member from the said edge portion, and means for adjustably varying the position of said spacer means in respect to the straight edge member so that the straight edge member may be spaced at variable predetermined distances from said edge portion of the table.

ARTHUR A. KOCH. 

